21. Lunges
Make sure your front knee is not pushed out too far, and your other knee doesn’t touch the floor. Your goal is 3 sets and each set includes 20 reps with 30-second rest.
STEPS:
1. Place your hands on your hips, and stand straight, with your shoulders back and chin up.
2. Step forward with one leg, lowering your hips until both knees are bent at about a 90-degree angle.
3. Pause, then push yourself back to the starting position.